how i would learn devops from scratch if i could start over
Автор: CodeTube
Загружено: 2024-12-23
Просмотров: 2
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learning devops from scratch can be a rewarding journey, as it combines software development (dev) and it operations (ops) to shorten the systems development life cycle and provide continuous delivery with high software quality. here’s a structured tutorial to help you get started, complete with code examples.
step 1: understand the basics of devops
*what is devops?*
devops is a set of practices that combines software development (dev) and it operations (ops). the main goals are to shorten the development life cycle, increase deployment frequency, and ensure high software quality.
*key concepts:*
continuous integration (ci)
continuous deployment (cd)
infrastructure as code (iac)
monitoring and logging
collaboration and communication
step 2: learn the fundamentals of software development
*programming languages:*
start with python or javascript as they are widely used in devops.
*example: simple python script*
```python
simple_script.py
def greet(name):
return f"hello, {name}!"
if _name_ == "__main__":
print(greet("world"))
```
*version control systems:*
learn git for version control. understand how to create repositories, commit changes, and manage branches.
*example: basic git commands*
```bash
initialize a new git repository
git init my-project
change directory
cd my-project
create a new file
echo "print('hello, devops!')" hello.py
add file to staging area
git add hello.py
commit changes
git commit -m "initial commit"
```
step 3: understand continuous integration (ci)
*what is ci?*
continuous integration is a practice where developers frequently integrate code into a shared repository.
*tools to learn:*
jenkins, travis ci, github actions
*example: github actions workflow*
create a `.github/workflows/ci.yml` file for a simple ci pipeline.
```yaml
name: ci
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
build:
runs-on: ubuntu-latest
steps:
...
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